NAME

       QwtSimpleCompassRose - A simple rose for QwtCompass.

SYNOPSIS

       #include <qwt_compass_rose.h>

       Inherits QwtCompassRose.

   Public Member Functions
       QwtSimpleCompassRose (int numThorns=8, int numThornLevels=-1)
       virtual ~QwtSimpleCompassRose ()
           Destructor.
       void setWidth (double)
       double width () const
       void setNumThorns (int)
       int numThorns () const
       void setNumThornLevels (int)
       int numThornLevels () const
       void setShrinkFactor (double factor)
       double shrinkFactor () const
       virtual void draw (QPainter *, const QPointF &center, double radius, double north,
           QPalette::ColorGroup=QPalette::Active) const

   Static Public Member Functions
       static void drawRose (QPainter *, const QPalette &, const QPointF &center, double radius,
           double north, double width, int numThorns, int numThornLevels, double shrinkFactor)

Detailed Description

       A simple rose for QwtCompass.

Constructor & Destructor Documentation

   QwtSimpleCompassRose::QwtSimpleCompassRose (int numThorns = 8, int numThornLevels = -1)
       Constructor

       Parameters:
           numThorns Number of thorns
           numThornLevels Number of thorn levels

Member Function Documentation

   void QwtSimpleCompassRose::draw (QPainter * painter, const QPointF & center, double radius,
       double north, QPalette::ColorGroup cg = QPalette::Active) const [virtual]
       Draw the rose

       Parameters:
           painter Painter
           center Center point
           radius Radius of the rose
           north Position
           cg Color group

       Implements QwtCompassRose.

   void QwtSimpleCompassRose::drawRose (QPainter * painter, const QPalette & palette, const
       QPointF & center, double radius, double north, double width, int numThorns, int
       numThornLevels, double shrinkFactor) [static]
       Draw the rose

       Parameters:
           painter Painter
           palette Palette
           center Center of the rose
           radius Radius of the rose
           north Position pointing to north
           width Width of the rose
           numThorns Number of thorns
           numThornLevels Number of thorn levels
           shrinkFactor Factor to shrink the thorns with each level

   int QwtSimpleCompassRose::numThornLevels () const
       Returns:
           Number of thorn levels

       See also:
           setNumThorns(), setNumThornLevels()

   int QwtSimpleCompassRose::numThorns () const
       Returns:
           Number of thorns

       See also:
           setNumThorns(), setNumThornLevels()

   void QwtSimpleCompassRose::setNumThornLevels (int numThornLevels)
       Set the of thorns levels

       Parameters:
           numThornLevels Number of thorns levels

       See also:
           setNumThorns(), numThornLevels()

   void QwtSimpleCompassRose::setNumThorns (int numThorns)
       Set the number of thorns on one level The number is aligned to a multiple of 4, with a
       minimum of 4

       Parameters:
           numThorns Number of thorns

       See also:
           numThorns(), setNumThornLevels()

   void QwtSimpleCompassRose::setShrinkFactor (double factor)
       Set the Factor how to shrink the thorns with each level The default value is 0.9.

       Parameters:
           factor Shrink factor

       See also:
           shrinkFactor()

   void QwtSimpleCompassRose::setWidth (double width)
       Set the width of the rose heads. Lower value make thinner heads. The range is limited from
       0.03 to 0.4.

       Parameters:
           width Width

   double QwtSimpleCompassRose::shrinkFactor () const
       Returns:
           Factor how to shrink the thorns with each level

       See also:
           setShrinkFactor()

   double QwtSimpleCompassRose::width () const
       Returns:
           Width of the rose

       See also:
           setWidth()

Author

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